CVE-2014-5707 in Bunny Run
Summary
by MITRE
The Bunny Run (aka com.stargirlgames.google.bunnyrun) application 1.1.2 for Android does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.
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Analysis
by VulDB Data Team • 08/29/2024
The vulnerability identified as CVE-2014-5707 affects the Bunny Run mobile application version 1.1.2 for Android platforms, representing a critical security flaw in the application's implementation of secure communication protocols. This issue stems from the application's failure to properly validate X.509 certificates during SSL/TLS connections, creating a significant attack surface that adversaries can exploit to compromise user data and system integrity. The vulnerability specifically impacts the application's ability to establish trust with remote servers, fundamentally undermining the security assurances that SSL/TLS protocols are designed to provide.
The technical flaw manifests in the application's certificate verification process where it fails to perform proper validation of X.509 certificates presented by SSL servers. This weakness allows malicious actors to execute man-in-the-middle attacks by presenting forged certificates that appear legitimate to the vulnerable application. The absence of certificate pinning, trust chain validation, and proper certificate fingerprint verification creates an environment where attackers can intercept communications between the mobile application and its backend services. This flaw directly violates fundamental security principles of secure communication and represents a failure in the application's cryptographic implementation.
The operational impact of this vulnerability extends beyond simple data interception, potentially enabling attackers to access sensitive user information, manipulate application functionality, and compromise user accounts. Mobile applications that rely on secure communication channels for authentication, data synchronization, or transaction processing become particularly vulnerable to exploitation. Attackers can leverage this weakness to impersonate legitimate servers, redirect users to malicious endpoints, or extract confidential data transmitted through the insecure connection. The vulnerability affects the confidentiality, integrity, and availability of information processed by the application, creating risks for both individual users and the organization maintaining the application.
Mitigation strategies for this vulnerability should focus on implementing proper certificate validation mechanisms within the application. The recommended approach includes implementing certificate pinning to ensure that only specific certificates or certificate authorities are accepted, adding proper trust chain validation, and incorporating certificate fingerprint verification. Security measures should also include regular updates to cryptographic libraries, implementation of secure coding practices, and adherence to industry standards such as those defined in the CWE-295 category for certificate validation weaknesses. Organizations should also consider implementing network monitoring to detect potential man-in-the-middle attacks and establish robust incident response procedures to address exploitation attempts. The vulnerability highlights the critical importance of following established security frameworks and standards such as those referenced in the ATT&CK framework under the credential access and defense evasion tactics, emphasizing the need for comprehensive mobile application security practices.